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Health and Safety Executive
Health and Safety Executive
Hand-arm vibration reduction
on construction sites
David Smeatham
Noise and Vibration Specialist Inspector,
Manchester
What is HAVS?
• Regular long term exposure to hand-arm vibration (HAV) disrupts blood circulation– Vascular– Neurological– Musculo-skeletal
• Painful and disabling
Occupational Health
0
100,000
200,000
300,000
400,000
500,000
600,000
Mim
imu
m n
um
be
r
What does an employer need to do?
Control of Vibration at Work Regs 2005
Employers have duties to:
• Assess• Control• Information, Instruction and Training• Check
Avoid the use of hand held tools (examples)
Avoid the use of breakers!
Avoid scabbling!
Choosing the right tool
Availability of tools
• Is it the best tool for the job?• Suitability• Efficiency
• Is it low vibration?
• Implement purchasing / hiring policy
Manage the exposure to HAV
Employers need to:estimate the vibration from the tool;• Manufacturers’ data• Standards improving• Look at guidance• Trade Associations• Internet (databases)• Measurements (ISO 5349)• Time of use
Points and the regulations
100 pointsAction value-• Reduce as far as you can• Provide training• Provide health surveillance
400 points-Limit value-• 2007/2010 see leaflet
www.hse.gov.uk/vibration
HAND-ARM VIBRATION EXPOSURE CALCULATOR
Vibration Time to reach EAV Time to reach ELV Exposure Partial Partial
magnitude 2.5 m/s2 A (8) time in min5 m/s2 A (8) time in minduration time in minsexposure partial expexposure
m/s² r.m.s. hours minutes hours minutes hours minutes m/s² A (8) points
Tool or process 1 0 0
Tool or process 2 0 0
Tool or process 3 0 0
Tool or process 4 0 0
Tool or process 5 0 0
Tool or process 6 0 0
Instructions for use: Daily Total
exposure exposure
Enter vibration magnitudes and exposure durations in the white areas. m/s² A (8) points
To calculate, press the Enter key, or move the cursor to a different cell.
The results are displayed in the yelllow areas.
Provide information
• Information and training– Risks/symptoms– Control measures– Correct tool use– Keeping warm and dry (clothing & gloves)– Avoid smoking
• Keep equipment well maintained– Tools– Attachments
Health surveillance
• Workers exposed to greater than the action value (100 points)• Tiered approach• Top tier is a self administered questionnaire• Referrals to competent person (e.g. qualified occupational nurse)
Any questions?
www.hse.gov.uk/vibration
Thanks for listening!
HAV reduction on construction sites
The role of the hire company
Kevin MintonHire Association Europe
Manufacturer
End user
Manufacturer
Hire company
End user
Manufacturer
Hire company
End user
Purchasing
Manufacturer
Hire company
End user
Purchasing
Maintenance
Manufacturer
Hire company
End user
Purchasing
Maintenance
Advising
Manufacturer
Hire company
End user
Purchasing
Maintenance
Advising
Training
Purchasing
• Purchasing policy: lead or follow demand?
• Low vibration, high efficiency equipment
• Maintenance advice
• Training for fitters
• HAV data measured in accordance with [best available standards]
Maintenance
• Planned in accordance with manufacturer’s guidance
• Take care over anti-vibration systems
Advising
• Upstream – active
• Downstream – point of hire - reactive
Advising upstream
• Tool selection focussed on job and environment
• “… holes not drills …”
• HSE, manufacturers’ & other sources
Advising at point of hire
• Data in a useful format – or formats– Colour coded– Time to action value, time to limit value– Vibration ms-2
– HSE points
Advising at point of hire
• Data on a label or swing-ticket
• Figures from database
• Advisory leaflet
Information system 2007
OLD
• Green, amber, red
• Each item had one colour set by 8-hour exposure
• Transition between colours based on earlier guidance
NEW
• Green, amber, red
• Each item has green, amber and red times
• Transitions based on action and limit values in regulations
Information system 2007
NEW
• Green, amber, red
• Each item has green, amber and red times
• Transitions based on action and limit values in regulations
Advising
• Training programme for end users, supervisors– Operation of equipment can affect vibration by
factor of [10]
• Available on CD-ROM and flipover presenter
HAV reduction – hire company’s role
• Purchasing
• Maintenance
• Advising
• Training
HAV reduction – hire company’s role
Any questions?